Frans bruno



(No Model.)

Patented Aug. 2, I898. F. BRUNO.

WINDOW RAISING AND LOCKING DEVICE;

(Application filed July 80, 1897.)

2 Sheets-Sheet I.

/N VE N TOR A TTORN E S.

I as on PHOTO-LITHO., WASHINDTON. n. c

Patented Aug. 2, I898.

F. BRUNO. WINDOW RAISING AND LOOKING DEVICE.

(Application filed July 80, 1897.)

2 Sheats8hoef 2.

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FRANS BRUNO, on NEW YORK, N. Y.

WINDOW RAISING AND LOCKING DEVICE.

SPECIFICATION forming part of Letters Patent No. 608,173, dated August 2, 1898.

Application filed July 30, 1897.

To all whom it may concern..-

Be it known that I, FRANS BRUNO, of N ew York, inthe county and State of New York, have invented a new and Improved Window Raising and Locking Device, of which the following is a full, clear, and exact descrip: tion.

This invention relates to mechanism for raising and locking window-sash and the objectis to provide a simple mechanism comprising a spring-motor that will be automatically Wound or set by a downward movement of the sash. 'When this mechanism is em ployed, the usual weights will be dispensed with.

I will describe the mechanism embodying my invention and then point out the novel features in the appended claim.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is an inside elevation of a windowsash and frame, with a portion of the same broken away to clearly show the features of my invention. Fig.2 is a partial section and partial elevation drawn on an enlarged scale and clearly showing the raising and locking mechanism. Fig. 3 is an edge view of the raising and locking mechanism. Fig. 4 is a section on the line at 4. of Fig. 2. Fig. 5 is a detail showing the raising and locking mechanism swung outward for a purpose that will be hereinafter described, and Fig. 6 is a section substantially on the line 6 6 of Fig. 2.

The raising and locking mechanism comprises a frame 1, mounted to swing on a pivot 2 in a mortise formed in the window-casing On a shaft 4:, mounted in the casing 1, is secured one end of a spring 5, the other end of said spring being attached to a gear-wheel 6, loosely mounted on the shaft 4:. The shaft 11s held from rotation in the frame 1 by means of a dog 7, engaging with a ratchet-wheel 8 011 the extended end of said shaft, the other end of the shaft being made angular, so as to be engaged by a key when it'is desired to rotate the shaft for regulating the tension of the spring. The key may be inserted through a hole 9 in the casing. I The geanwheel 6 meshes with a rack 10,

Serial No. 646,473. (No model.)

frame 1 and hearing at the other end against the inner wall of the mortise or recess formed in the casing, as is plainly indicated in Fig. 2.

A holding and locking device is provided for the wheel 6. As here shown, this holding and locking device consists of a pin let, mounted to slide in guideways secured to the inner side of one side portion of the frame 1. From the slide-pin 14 a releasing-rod-15 extends outward through a slot 16 in the casing, and atits outer end the rod 15 is provided with a finger-piece 1'7.

As before stated, the shaftet is designed to be rotated when itis desired to adjust the tension of the spring. It maybe rotated in one direction by applying a key through the hole 9. When, however, it is necessary to lower the tension or strength of the spring, the window-sash must be moved outward or wholly removed from the casing, and then after removing the face-plate the frame 1, carrying the spring and gear-wheel, may be swung outward, as indicated in Fig. 5. When in this position, the dog 7 may be moved out of engagement with the ratchet-wheel 8, so that the parts will rotate to adjust the spring. As indicated in Fig. 1, a raising and lowering device will be arranged one on each side of the window.

In operation when it is desired to raise the sash the holding-pins 14 must be moved upward out of engagement with the wheels 6. This may be done by pushing upward on the finger-pieces 17. WVhen thewheels are thus released, the springs will operate to rotate the Wheels, and this rotary movement of the wheels will raise the sash through the medium of the racks. The sash may be locked at any desired opening by simply allowing the pins 14 to fall into engagement with the gearwheels.

When the sash is moved downward, it is obvious that thewheels (Swill be rotated'to wind the springs, and thus the springs will be placed in proper tension for again opening or moving the sash upward when desired.

IOO

Having thus described my invention, I hole at the upper portion of the casing ar- 10 claim as new and desire to secure by Letters ranged in the mortise and whereby the lower Patent portion of the frame may be swung Wholly A window-raising mechanism, comprising out of the mortise as and for the purpose a rack on a Window-sash, a spring-operated specified.

gear-Wheel for engaging With said rack, a FRANS BRUNO. frame in which said Wheel is mounted. and a Witnesses:

pivot extended across a mortise in the win- JNo. M. BITTER,

doW-casing, the said pivot passing through a O. R. FERGUSON. 

